Hierarchy/Derived subclasses
310 / 300 | -> 311 | -> 328 | -> 334 | -> 335 |
uspto searches
Patent Apps in 310/335Granted Patents in 310/335
Use the links above or do an advanced search in ppubs for:
(310/335.ccls.)
This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.